Former Nine chief Eddie McGuire described Mr Law as a "wonderful man, a person of outstanding integrity, great humour and a strong moral compass".

"Long after our short period of working together we remained friends, something that often doesn't happen in business, particularly in television," he said. "And I'm deeply saddened by the passing of a great man."

Jeff Browne, who recently stood down as managing director of the Nine Network, said Mr Law had "made it in the big smoke" with "good, honest, country values". He described Mr Law as a "furious worker" who had an impressive capacity to absorb data. "What he said, he meant. He was a great man. I'll miss him as a friend."

Nine Entertainment chief executive David Gyngell said Mr Law "was a man of great intellect and decency, and one of the hardest-working media executives I've ever encountered. His attention to detail and his loyalty were bywords in our tough industry, and his passing is both untimely and very sad."

Greg Roebuck, managing director of carsales.com.au, where Mr Law had served as a director since early 2007, said he was a "consummate director".

"He was incredibly knowledgeable, supportive and able to deal with issues with wonderful empathy and humour. His passion for the business was always evident and he was a major contributor to the success the business enjoys," Mr Roebuck said.

"He was a mentor and a dear friend to each member of the board and he will be enormously missed."

Mr Law, 62, is survived by his wife and two children. According to Who's Who, his interests included golf and cycling.

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